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diff --git a/roles/openshift_logging/README.md b/roles/openshift_logging/README.md
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+++ b/roles/openshift_logging/README.md
@@ -6,6 +6,9 @@ This role is used for installing the Aggregated Logging stack. It should be run
a single host, it will create any missing certificates and API objects that the current
[logging deployer](https://github.com/openshift/origin-aggregated-logging/tree/master/deployer) does.
+This role requires that the control host it is run on has Java installed as part of keystore
+generation for Elasticsearch (it uses JKS) as well as openssl to sign certificates.
+
As part of the installation, it is recommended that you add the Fluentd node selector label
to the list of persisted [node labels](https://docs.openshift.org/latest/install_config/install/advanced_install.html#configuring-node-host-labels).
@@ -32,6 +35,7 @@ When both `openshift_logging_install_logging` and `openshift_logging_upgrade_log
- `openshift_logging_curator_log_level`: The log level for the Curator process. Defaults to 'ERROR'.
- `openshift_logging_curator_cpu_limit`: The amount of CPU to allocate to Curator. Default is '100m'.
- `openshift_logging_curator_memory_limit`: The amount of memory to allocate to Curator. Unset if not specified.
+- `openshift_logging_curator_nodeselector`: A map of labels (e.g. {"node":"infra","region":"west"} to select the nodes where the curator pod will land.
- `openshift_logging_kibana_hostname`: The Kibana hostname. Defaults to 'kibana.example.com'.
- `openshift_logging_kibana_cpu_limit`: The amount of CPU to allocate to Kibana or unset if not specified.
@@ -40,6 +44,7 @@ When both `openshift_logging_install_logging` and `openshift_logging_upgrade_log
- `openshift_logging_kibana_proxy_cpu_limit`: The amount of CPU to allocate to Kibana proxy or unset if not specified.
- `openshift_logging_kibana_proxy_memory_limit`: The amount of memory to allocate to Kibana proxy or unset if not specified.
- `openshift_logging_kibana_replica_count`: The number of replicas Kibana should be scaled up to. Defaults to 1.
+- `openshift_logging_kibana_nodeselector`: A map of labels (e.g. {"node":"infra","region":"west"} to select the nodes where the pod will land.
- `openshift_logging_fluentd_nodeselector`: The node selector that the Fluentd daemonset uses to determine where to deploy to. Defaults to '"logging-infra-fluentd": "true"'.
- `openshift_logging_fluentd_cpu_limit`: The CPU limit for Fluentd pods. Defaults to '100m'.
@@ -64,6 +69,7 @@ When both `openshift_logging_install_logging` and `openshift_logging_upgrade_log
- `openshift_logging_es_pvc_prefix`: The prefix for the generated PVCs. Defaults to 'logging-es'.
- `openshift_logging_es_recover_after_time`: The amount of time ES will wait before it tries to recover. Defaults to '5m'.
- `openshift_logging_es_storage_group`: The storage group used for ES. Defaults to '65534'.
+- `openshift_logging_es_nodeselector`: A map of labels (e.g. {"node":"infra","region":"west"} to select the nodes where the pod will land.
When `openshift_logging_use_ops` is `True`, there are some additional vars. These work the
same as above for their non-ops counterparts, but apply to the OPS cluster instance: